[Deepin-Kernel-SIG] [linux 6.6.y] [FROMLIST] [AMD]x86/CPU/AMD: Add family 0x1a models 0xd0 through 0xef

[Avenger-285714]

Family 0x1a model 0xd0, 0xe0 should have X86_FEATURE_ZEN6

[WangYuli: Fix conflicts]
Link: https://lore.kernel.org/lkml/20260530061819.9721-1-Pratik.Vishwakarma@amd.com/

Summary by Sourcery

Enhancements:

• Broaden the model ID range that is recognized as supporting X86_FEATURE_ZEN6 for AMD family 0x1a CPUs.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Extends the AMD Zen 6 CPU model range detection so that additional family 0x1a models (0xd0–0xef) are recognized as having the X86_FEATURE_ZEN6 capability during BSP initialization.

Flow diagram for updated Zen6 feature detection in bsp_init_amd

flowchart TD
    A[bsp_init_amd]
    A --> B{family == 0x1a}
    B -- no --> Z[other handling]
    B -- yes --> C{model in 0x50-0x5f,
0x90-0xaf,
0xc0-0xef?}
    C -- no --> Z
    C -- yes --> D["setup_force_cpu_cap(X86_FEATURE_ZEN6)"]

Loading

File-Level Changes

Change	Details	Files
Broaden Zen 6 feature attribution to more AMD family 0x1a CPU models during BSP initialization.	Update the AMD CPU family/model switch to include models 0xd0–0xef in the range that sets X86_FEATURE_ZEN6 Ensure that newly added models automatically receive Zen 6 feature flags during CPU capability setup	arch/x86/kernel/cpu/amd.c

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[sourcery-ai]

Hey - I've left some high level feedback:

• Consider adding a short code comment near the model range explaining why 0xc0 through 0xef are all treated as ZEN6, to help future maintainers understand that this is intentional and based on AMD model allocations.
• Double-check that extending the range to 0xef does not inadvertently include reserved or future non‑Zen6 models; if only specific subranges are guaranteed Zen6, it may be safer to encode them explicitly rather than as one large continuous range.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Consider adding a short code comment near the model range explaining why 0xc0 through 0xef are all treated as ZEN6, to help future maintainers understand that this is intentional and based on AMD model allocations.
- Double-check that extending the range to 0xef does not inadvertently include reserved or future non‑Zen6 models; if only specific subranges are guaranteed Zen6, it may be safer to encode them explicitly rather than as one large continuous range.

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[Copilot]

Pull request overview

This PR updates AMD Zen-generation detection for family 0x1a CPUs so that additional model IDs are recognized as Zen6 and get X86_FEATURE_ZEN6 set during boot CPU initialization.

Changes:

• Expand the family 0x1a Zen6 model range from 0xc0 ... 0xcf to 0xc0 ... 0xef in bsp_init_amd().

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